Beep, Beep, Beep!

You probably have one of these sitting on your kitchen counter or built into a kitchen wall. No doubt you know how to use it to reheat leftovers or make popcorn. That familiar beeping sound means that your food is done. But how does a microwave oven work? Do you know how?

News You Can Use

A microwave oven produces microwaves and guides them into the oven.

The metal walls and metal mesh inside the oven door ensure that the microwaves can’t escape from the oven. Instead, the microwaves bounce around inside the oven and pass through the food.

Microwaves are electromagnetic waves, like waves of visible light. However, microwaves have lower frequencies and less energy than visible light.